gitweb.cgi

   1 #!/usr/bin/perl
   2
   3 # gitweb - simple web interface to track changes in git repositories
   4 #
   5 # (C) 2005, Kay Sievers <kay.sievers@vrfy.org>
   6 # (C) 2005, Christian Gierke <ch@gierke.de>
   7 #
   8 # This program is licensed under the GPLv2
   9
  10 use strict;
  11 use warnings;
  12 use CGI qw(:standard :escapeHTML -nosticky);
  13 use CGI::Util qw(unescape);
  14 use CGI::Carp qw(fatalsToBrowser);
  15 use Fcntl ':mode';
  16
  17 my $cgi = new CGI;
  18 my $version =           "246";
  19 my $my_url =            $cgi->url();
  20 my $my_uri =            $cgi->url(-absolute => 1);
  21 my $rss_link = "";
  22
  23 # absolute fs-path which will be prepended to the project path
  24 #my $projectroot =      "/pub/scm";
  25 my $projectroot = "/home/kay/public_html/pub/scm";
  26
  27 # location of the git-core binaries
  28 my $gitbin =            "/usr/bin";
  29
  30 # location for temporary files needed for diffs
  31 my $git_temp =          "/tmp/gitweb";
  32
  33 # target of the home link on top of all pages
  34 my $home_link =         $my_uri;
  35
  36 # html text to include at home page
  37 my $home_text =         "indextext.html";
  38
  39 # source of projects list
  40 #my $projects_list = $projectroot;
  41 my $projects_list = "index/index.aux";
  42
  43 # input validation and dispatch
  44 my $action = $cgi->param('a');
  45 if (defined $action) {
  46         if ($action =~ m/[^0-9a-zA-Z\.\-_]/) {
  47                 undef $action;
  48                 die_error(undef, "Invalid action parameter.");
  49         }
  50         if ($action eq "git-logo.png") {
  51                 git_logo();
  52                 exit;
  53         } elsif ($action eq "opml") {
  54                 git_opml();
  55                 exit;
  56         }
  57 }
  58
  59 my $order = $cgi->param('o');
  60 if (defined $order) {
  61         if ($order =~ m/[^0-9a-zA-Z_]/) {
  62                 undef $order;
  63                 die_error(undef, "Invalid order parameter.");
  64         }
  65 }
  66
  67 my $project = $cgi->param('p');
  68 if (defined $project) {
  69         $project = validate_input($project);
  70         if (!defined($project)) {
  71                 die_error(undef, "Invalid project parameter.");
  72         }
  73         if (!(-d "$projectroot/$project")) {
  74                 undef $project;
  75                 die_error(undef, "No such directory.");
  76         }
  77         if (!(-e "$projectroot/$project/HEAD")) {
  78                 undef $project;
  79                 die_error(undef, "No such project.");
  80         }
  81         $rss_link = "<link rel=\"alternate\" title=\"$project log\" href=\"$my_uri?p=$project;a=rss\" type=\"application/rss+xml\"/>";
  82         $ENV{'GIT_DIR'} = "$projectroot/$project";
  83 } else {
  84         git_project_list();
  85         exit;
  86 }
  87
  88 my $file_name = $cgi->param('f');
  89 if (defined $file_name) {
  90         $file_name = validate_input($file_name);
  91         if (!defined($file_name)) {
  92                 die_error(undef, "Invalid file parameter.");
  93         }
  94 }
  95
  96 my $hash = $cgi->param('h');
  97 if (defined $hash) {
  98         $hash = validate_input($hash);
  99         if (!defined($hash)) {
 100                 die_error(undef, "Invalid hash parameter.");
 101         }
 102 }
 103
 104 my $hash_parent = $cgi->param('hp');
 105 if (defined $hash_parent) {
 106         $hash_parent = validate_input($hash_parent);
 107         if (!defined($hash_parent)) {
 108                 die_error(undef, "Invalid hash parent parameter.");
 109         }
 110 }
 111
 112 my $hash_base = $cgi->param('hb');
 113 if (defined $hash_base) {
 114         $hash_base = validate_input($hash_base);
 115         if (!defined($hash_base)) {
 116                 die_error(undef, "Invalid hash base parameter.");
 117         }
 118 }
 119
 120 my $page = $cgi->param('pg');
 121 if (defined $page) {
 122         if ($page =~ m/[^0-9]$/) {
 123                 undef $page;
 124                 die_error(undef, "Invalid page parameter.");
 125         }
 126 }
 127
 128 my $searchtext = $cgi->param('s');
 129 if (defined $searchtext) {
 130         if ($searchtext =~ m/[^a-zA-Z0-9_\.\/\-\+\:\@ ]/) {
 131                 undef $searchtext;
 132                 die_error(undef, "Invalid search parameter.");
 133         }
 134         $searchtext = quotemeta $searchtext;
 135 }
 136
 137 sub validate_input {
 138         my $input = shift;
 139
 140         if ($input =~ m/^[0-9a-fA-F]{40}$/) {
 141                 return $input;
 142         }
 143         if ($input =~ m/(^|\/)(|\.|\.\.)($|\/)/) {
 144                 return undef;
 145         }
 146         if ($input =~ m/[^a-zA-Z0-9_\.\/\-\+\#\~]/) {
 147                 return undef;
 148         }
 149         return $input;
 150 }
 151
 152 if (!defined $action || $action eq "summary") {
 153         git_summary();
 154         exit;
 155 } elsif ($action eq "heads") {
 156         git_heads();
 157         exit;
 158 } elsif ($action eq "tags") {
 159         git_tags();
 160         exit;
 161 } elsif ($action eq "blob") {
 162         git_blob();
 163         exit;
 164 } elsif ($action eq "blob_plain") {
 165         git_blob_plain();
 166         exit;
 167 } elsif ($action eq "tree") {
 168         git_tree();
 169         exit;
 170 } elsif ($action eq "rss") {
 171         git_rss();
 172         exit;
 173 } elsif ($action eq "commit") {
 174         git_commit();
 175         exit;
 176 } elsif ($action eq "log") {
 177         git_log();
 178         exit;
 179 } elsif ($action eq "blobdiff") {
 180         git_blobdiff();
 181         exit;
 182 } elsif ($action eq "blobdiff_plain") {
 183         git_blobdiff_plain();
 184         exit;
 185 } elsif ($action eq "commitdiff") {
 186         git_commitdiff();
 187         exit;
 188 } elsif ($action eq "commitdiff_plain") {
 189         git_commitdiff_plain();
 190         exit;
 191 } elsif ($action eq "history") {
 192         git_history();
 193         exit;
 194 } elsif ($action eq "search") {
 195         git_search();
 196         exit;
 197 } elsif ($action eq "shortlog") {
 198         git_shortlog();
 199         exit;
 200 } elsif ($action eq "tag") {
 201         git_tag();
 202         exit;
 203 } else {
 204         undef $action;
 205         die_error(undef, "Unknown action.");
 206         exit;
 207 }
 208
 209 sub git_header_html {
 210         my $status = shift || "200 OK";
 211
 212         my $title = "git";
 213         if (defined $project) {
 214                 $title .= " - $project";
 215                 if (defined $action) {
 216                         $title .= "/$action";
 217                 }
 218         }
 219         print $cgi->header(-type=>'text/html',  -charset => 'utf-8', -status=> $status);
 220         print <<EOF;
 221 <?xml version="1.0" encoding="utf-8"?>
 222 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 223 <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" lang="en-US">
 224 <!-- git web interface v$version, (C) 2005, Kay Sievers <kay.sievers\@vrfy.org>, Christian Gierke <ch\@gierke.de> -->
 225 <head>
 226 <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
 227 <meta name="robots" content="index, nofollow"/>
 228 <title>$title</title>
 229 $rss_link
 230 <style type="text/css">
 231 body { font-family: sans-serif; font-size: 12px; margin:0px; border:solid #d9d8d1; border-width:1px; margin:10px; }
 232 a { color:#0000cc; }
 233 a:hover, a:visited, a:active { color:#880000; }
 234 div.page_header { height:25px; padding:8px; font-size:18px; font-weight:bold; background-color:#d9d8d1; }
 235 div.page_header a:visited, a.header { color:#0000cc; }
 236 div.page_header a:hover { color:#880000; }
 237 div.page_nav { padding:8px; }
 238 div.page_nav a:visited { color:#0000cc; }
 239 div.page_path { padding:8px; border:solid #d9d8d1; border-width:0px 0px 1px}
 240 div.page_footer { height:17px; padding:4px 8px; background-color: #d9d8d1; }
 241 div.page_footer_text { float:left; color:#555555; font-style:italic; }
 242 div.page_body { padding:8px; }
 243 div.title, a.title {
 244         display:block; padding:6px 8px;
 245         font-weight:bold; background-color:#edece6; text-decoration:none; color:#000000;
 246 }
 247 a.title:hover { background-color: #d9d8d1; }
 248 div.title_text { padding:6px 0px; border: solid #d9d8d1; border-width:0px 0px 1px; }
 249 div.log_body { padding:8px 8px 8px 150px; }
 250 span.age { position:relative; float:left; width:142px; font-style:italic; }
 251 div.log_link {
 252         padding:0px 8px;
 253         font-size:10px; font-family:sans-serif; font-style:normal;
 254         position:relative; float:left; width:136px;
 255 }
 256 div.list_head { padding:6px 8px 4px; border:solid #d9d8d1; border-width:1px 0px 0px; font-style:italic; }
 257 a.list { text-decoration:none; color:#000000; }
 258 a.list:hover { text-decoration:underline; color:#880000; }
 259 a.text { text-decoration:none; color:#0000cc; }
 260 a.text:visited { text-decoration:none; color:#880000; }
 261 a.text:hover { text-decoration:underline; color:#880000; }
 262 table { padding:8px 4px; }
 263 th { padding:2px 5px; font-size:12px; text-align:left; }
 264 tr.light:hover { background-color:#edece6; }
 265 tr.dark { background-color:#f6f6f0; }
 266 tr.dark:hover { background-color:#edece6; }
 267 td { padding:2px 5px; font-size:12px; vertical-align:top; }
 268 td.link { padding:2px 5px; font-family:sans-serif; font-size:10px; }
 269 div.pre { font-family:monospace; font-size:12px; white-space:pre; }
 270 div.diff_info { font-family:monospace; color:#000099; background-color:#edece6; font-style:italic; }
 271 div.index_include { border:solid #d9d8d1; border-width:0px 0px 1px; padding:12px 8px; }
 272 div.search { margin:4px 8px; position:absolute; top:56px; right:12px }
 273 a.linenr { color:#999999; text-decoration:none }
 274 a.rss_logo {
 275         float:right; padding:3px 0px; width:35px; line-height:10px;
 276         border:1px solid; border-color:#fcc7a5 #7d3302 #3e1a01 #ff954e;
 277         color:#ffffff; background-color:#ff6600;
 278         font-weight:bold; font-family:sans-serif; font-size:10px;
 279         text-align:center; text-decoration:none;
 280 }
 281 a.rss_logo:hover { background-color:#ee5500; }
 282 </style>
 283 </head>
 284 <body>
 285 EOF
 286         print "<div class=\"page_header\">\n" .
 287               "<a href=\"http://www.kernel.org/pub/software/scm/git/docs/\" title=\"git documentation\">" .
 288               "<img src=\"$my_uri?a=git-logo.png\" width=\"72\" height=\"27\" alt=\"git\" style=\"float:right; border-width:0px;\"/>" .
 289               "</a>\n";
 290         print $cgi->a({-href => $home_link}, "projects") . " / ";
 291         if (defined $project) {
 292                 print $cgi->a({-href => "$my_uri?p=$project;a=summary"}, escapeHTML($project));
 293                 if (defined $action) {
 294                         print " / $action";
 295                 }
 296                 print "\n";
 297                 if (!defined $searchtext) {
 298                         $searchtext = "";
 299                 }
 300                 my $search_hash;
 301                 if (defined $hash) {
 302                         $search_hash = $hash;
 303                 } else {
 304                         $search_hash  = "HEAD";
 305                 }
 306                 $cgi->param("a", "search");
 307                 $cgi->param("h", $search_hash);
 308                 print $cgi->startform(-method => "get", -action => "$my_uri") .
 309                       "<div class=\"search\">\n" .
 310                       $cgi->hidden(-name => "p") . "\n" .
 311                       $cgi->hidden(-name => "a") . "\n" .
 312                       $cgi->hidden(-name => "h") . "\n" .
 313                       $cgi->textfield(-name => "s", -value => $searchtext) . "\n" .
 314                       "</div>" .
 315                       $cgi->end_form() . "\n";
 316         }
 317         print "</div>\n";
 318 }
 319
 320 sub git_footer_html {
 321         print "<div class=\"page_footer\">\n";
 322         if (defined $project) {
 323                 my $descr = git_read_description($project);
 324                 if (defined $descr) {
 325                         print "<div class=\"page_footer_text\">" . escapeHTML($descr) . "</div>\n";
 326                 }
 327                 print $cgi->a({-href => "$my_uri?p=$project;a=rss", -class => "rss_logo"}, "RSS") . "\n";
 328         } else {
 329                 print $cgi->a({-href => "$my_uri?a=opml", -class => "rss_logo"}, "OPML") . "\n";
 330         }
 331         print "</div>\n" .
 332               "</body>\n" .
 333               "</html>";
 334 }
 335
 336 sub die_error {
 337         my $status = shift || "403 Forbidden";
 338         my $error = shift || "Malformed query, file missing or permission denied";
 339
 340         git_header_html($status);
 341         print "<div class=\"page_body\">\n" .
 342               "<br/><br/>\n" .
 343               "$status - $error\n" .
 344               "<br/>\n" .
 345               "</div>\n";
 346         git_footer_html();
 347         exit;
 348 }
 349
 350 sub git_get_type {
 351         my $hash = shift;
 352
 353         open my $fd, "-|", "$gitbin/git-cat-file -t $hash" or return;
 354         my $type = <$fd>;
 355         close $fd or return;
 356         chomp $type;
 357         return $type;
 358 }
 359
 360 sub git_read_hash {
 361         my $path = shift;
 362
 363         open my $fd, "$projectroot/$path" or return undef;
 364         my $head = <$fd>;
 365         close $fd;
 366         chomp $head;
 367         if ($head =~ m/^[0-9a-fA-F]{40}$/) {
 368                 return $head;
 369         }
 370 }
 371
 372 sub git_read_description {
 373         my $path = shift;
 374
 375         open my $fd, "$projectroot/$path/description" or return undef;
 376         my $descr = <$fd>;
 377         close $fd;
 378         chomp $descr;
 379         return $descr;
 380 }
 381
 382 sub git_read_tag {
 383         my $tag_id = shift;
 384         my %tag;
 385         my @comment;
 386
 387         open my $fd, "-|", "$gitbin/git-cat-file tag $tag_id" or return;
 388         $tag{'id'} = $tag_id;
 389         while (my $line = <$fd>) {
 390                 chomp $line;
 391                 if ($line =~ m/^object ([0-9a-fA-F]{40})$/) {
 392                         $tag{'object'} = $1;
 393                 } elsif ($line =~ m/^type (.+)$/) {
 394                         $tag{'type'} = $1;
 395                 } elsif ($line =~ m/^tag (.+)$/) {
 396                         $tag{'name'} = $1;
 397                 } elsif ($line =~ m/^tagger (.*) ([0-9]+) (.*)$/) {
 398                         $tag{'author'} = $1;
 399                         $tag{'epoch'} = $2;
 400                         $tag{'tz'} = $3;
 401                 } elsif ($line =~ m/--BEGIN/) {
 402                         push @comment, $line;
 403                         last;
 404                 } elsif ($line eq "") {
 405                         last;
 406                 }
 407         }
 408         push @comment, <$fd>;
 409         $tag{'comment'} = \@comment;
 410         close $fd or return;
 411         if (!defined $tag{'name'}) {
 412                 return
 413         };
 414         return %tag
 415 }
 416
 417 sub age_string {
 418         my $age = shift;
 419         my $age_str;
 420
 421         if ($age > 60*60*24*365*2) {
 422                 $age_str = (int $age/60/60/24/365);
 423                 $age_str .= " years ago";
 424         } elsif ($age > 60*60*24*(365/12)*2) {
 425                 $age_str = int $age/60/60/24/(365/12);
 426                 $age_str .= " months ago";
 427         } elsif ($age > 60*60*24*7*2) {
 428                 $age_str = int $age/60/60/24/7;
 429                 $age_str .= " weeks ago";
 430         } elsif ($age > 60*60*24*2) {
 431                 $age_str = int $age/60/60/24;
 432                 $age_str .= " days ago";
 433         } elsif ($age > 60*60*2) {
 434                 $age_str = int $age/60/60;
 435                 $age_str .= " hours ago";
 436         } elsif ($age > 60*2) {
 437                 $age_str = int $age/60;
 438                 $age_str .= " min ago";
 439         } elsif ($age > 2) {
 440                 $age_str = int $age;
 441                 $age_str .= " sec ago";
 442         } else {
 443                 $age_str .= " right now";
 444         }
 445         return $age_str;
 446 }
 447
 448 sub git_read_commit {
 449         my $commit_id = shift;
 450         my $commit_text = shift;
 451
 452         my @commit_lines;
 453         my %co;
 454
 455         if (defined $commit_text) {
 456                 @commit_lines = @$commit_text;
 457         } else {
 458                 $/ = "\0";
 459                 open my $fd, "-|", "$gitbin/git-rev-list --header --parents --max-count=1 $commit_id" or return;
 460                 @commit_lines = split '\n', <$fd>;
 461                 close $fd or return;
 462                 $/ = "\n";
 463                 pop @commit_lines;
 464         }
 465         my $header = shift @commit_lines;
 466         if (!($header =~ m/^[0-9a-fA-F]{40}/)) {
 467                 return;
 468         }
 469         ($co{'id'}, my @parents) = split ' ', $header;
 470         $co{'parents'} = \@parents;
 471         $co{'parent'} = $parents[0];
 472         while (my $line = shift @commit_lines) {
 473                 last if $line eq "\n";
 474                 if ($line =~ m/^tree ([0-9a-fA-F]{40})$/) {
 475                         $co{'tree'} = $1;
 476                 } elsif ($line =~ m/^author (.*) ([0-9]+) (.*)$/) {
 477                         $co{'author'} = $1;
 478                         $co{'author_epoch'} = $2;
 479                         $co{'author_tz'} = $3;
 480                         if ($co{'author'} =~ m/^([^<]+) </) {
 481                                 $co{'author_name'} = $1;
 482                         } else {
 483                                 $co{'author_name'} = $co{'author'};
 484                         }
 485                 } elsif ($line =~ m/^committer (.*) ([0-9]+) (.*)$/) {
 486                         $co{'committer'} = $1;
 487                         $co{'committer_epoch'} = $2;
 488                         $co{'committer_tz'} = $3;
 489                         $co{'committer_name'} = $co{'committer'};
 490                         $co{'committer_name'} =~ s/ <.*//;
 491                 }
 492         }
 493         if (!defined $co{'tree'}) {
 494                 return;
 495         };
 496
 497         foreach my $title (@commit_lines) {
 498                 if ($title ne "") {
 499                         $co{'title'} = chop_str($title, 80, 5);
 500                         # remove leading stuff of merges to make the interesting part visible
 501                         if (length($title) > 50) {
 502                                 $title =~ s/^Automatic //;
 503                                 $title =~ s/^merge (of|with) /Merge ... /i;
 504                                 if (length($title) > 50) {
 505                                         $title =~ s/(http|rsync):\/\///;
 506                                 }
 507                                 if (length($title) > 50) {
 508                                         $title =~ s/(master|www|rsync)\.//;
 509                                 }
 510                                 if (length($title) > 50) {
 511                                         $title =~ s/kernel.org:?//;
 512                                 }
 513                                 if (length($title) > 50) {
 514                                         $title =~ s/\/pub\/scm//;
 515                                 }
 516                         }
 517                         $co{'title_short'} = chop_str($title, 50, 5);
 518                         last;
 519                 }
 520         }
 521         # remove added spaces
 522         foreach my $line (@commit_lines) {
 523                 $line =~ s/^    //;
 524         }
 525         $co{'comment'} = \@commit_lines;
 526
 527         my $age = time - $co{'committer_epoch'};
 528         $co{'age'} = $age;
 529         $co{'age_string'} = age_string($age);
 530         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($co{'committer_epoch'});
 531         if ($age > 60*60*24*7*2) {
 532                 $co{'age_string_date'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 533                 $co{'age_string_age'} = $co{'age_string'};
 534         } else {
 535                 $co{'age_string_date'} = $co{'age_string'};
 536                 $co{'age_string_age'} = sprintf "%4i-%02u-%02i", 1900 + $year, $mon+1, $mday;
 537         }
 538         return %co;
 539 }
 540
 541 sub git_diff_print {
 542         my $from = shift;
 543         my $from_name = shift;
 544         my $to = shift;
 545         my $to_name = shift;
 546         my $format = shift || "html";
 547
 548         my $from_tmp = "/dev/null";
 549         my $to_tmp = "/dev/null";
 550         my $pid = $$;
 551
 552         # create tmp from-file
 553         if (defined $from) {
 554                 $from_tmp = "$git_temp/gitweb_" . $$ . "_from";
 555                 open my $fd2, "> $from_tmp";
 556                 open my $fd, "-|", "$gitbin/git-cat-file blob $from";
 557                 my @file = <$fd>;
 558                 print $fd2 @file;
 559                 close $fd2;
 560                 close $fd;
 561         }
 562
 563         # create tmp to-file
 564         if (defined $to) {
 565                 $to_tmp = "$git_temp/gitweb_" . $$ . "_to";
 566                 open my $fd2, "> $to_tmp";
 567                 open my $fd, "-|", "$gitbin/git-cat-file blob $to";
 568                 my @file = <$fd>;
 569                 print $fd2 @file;
 570                 close $fd2;
 571                 close $fd;
 572         }
 573
 574         open my $fd, "-|", "/usr/bin/diff -u -p -L $from_name -L $to_name $from_tmp $to_tmp";
 575         if ($format eq "plain") {
 576                 undef $/;
 577                 print <$fd>;
 578                 $/ = "\n";
 579         } else {
 580                 while (my $line = <$fd>) {
 581                         chomp($line);
 582                         my $char = substr($line, 0, 1);
 583                         my $color = "";
 584                         if ($char eq '+') {
 585                                 $color = " style=\"color:#008800;\"";
 586                         } elsif ($char eq "-") {
 587                                 $color = " style=\"color:#cc0000;\"";
 588                         } elsif ($char eq "@") {
 589                                 $color = " style=\"color:#990099;\"";
 590                         } elsif ($char eq "\\") {
 591                                 # skip errors
 592                                 next;
 593                         }
 594                         while ((my $pos = index($line, "\t")) != -1) {
 595                                 if (my $count = (8 - (($pos-1) % 8))) {
 596                                         my $spaces = ' ' x $count;
 597                                         $line =~ s/\t/$spaces/;
 598                                 }
 599                         }
 600                         print "<div class=\"pre\"$color>" . escapeHTML($line) . "</div>\n";
 601                 }
 602         }
 603         close $fd;
 604
 605         if (defined $from) {
 606                 unlink($from_tmp);
 607         }
 608         if (defined $to) {
 609                 unlink($to_tmp);
 610         }
 611 }
 612
 613 sub mode_str {
 614         my $mode = oct shift;
 615
 616         if (S_ISDIR($mode & S_IFMT)) {
 617                 return 'drwxr-xr-x';
 618         } elsif (S_ISLNK($mode)) {
 619                 return 'lrwxrwxrwx';
 620         } elsif (S_ISREG($mode)) {
 621                 # git cares only about the executable bit
 622                 if ($mode & S_IXUSR) {
 623                         return '-rwxr-xr-x';
 624                 } else {
 625                         return '-rw-r--r--';
 626                 };
 627         } else {
 628                 return '----------';
 629         }
 630 }
 631
 632 sub chop_str {
 633         my $str = shift;
 634         my $len = shift;
 635         my $add_len = shift || 10;
 636
 637         # allow only $len chars, but don't cut a word if it would fit in $add_len
 638         # if it doesn't fit, cut it if it's still longer than the dots we would add
 639         $str =~ m/^(.{0,$len}[^ \/\-_:\.@]{0,$add_len})(.*)/;
 640         my $body = $1;
 641         my $tail = $2;
 642         if (length($tail) > 4) {
 643                 $tail = " ...";
 644         }
 645         return "$body$tail";
 646 }
 647
 648 sub file_type {
 649         my $mode = oct shift;
 650
 651         if (S_ISDIR($mode & S_IFMT)) {
 652                 return "directory";
 653         } elsif (S_ISLNK($mode)) {
 654                 return "symlink";
 655         } elsif (S_ISREG($mode)) {
 656                 return "file";
 657         } else {
 658                 return "unknown";
 659         }
 660 }
 661
 662 sub format_log_line_html {
 663         my $line = shift;
 664
 665         $line = escapeHTML($line);
 666         $line =~ s/ /&nbsp;/g;
 667         if ($line =~ m/([0-9a-fA-F]{40})/) {
 668                 my $hash_text = $1;
 669                 if (git_get_type($hash_text) eq "commit") {
 670                         my $link = $cgi->a({-class => "text", -href => "$my_uri?p=$project;a=commit;h=$hash_text"}, $hash_text);
 671                         $line =~ s/$hash_text/$link/;
 672                 }
 673         }
 674         return $line;
 675 }
 676
 677 sub date_str {
 678         my $epoch = shift;
 679         my $tz = shift || "-0000";
 680
 681         my %date;
 682         my @months = ("Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec");
 683         my @days = ("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
 684         my ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($epoch);
 685         $date{'hour'} = $hour;
 686         $date{'minute'} = $min;
 687         $date{'mday'} = $mday;
 688         $date{'day'} = $days[$wday];
 689         $date{'month'} = $months[$mon];
 690         $date{'rfc2822'} = sprintf "%s, %d %s %4d %02d:%02d:%02d +0000", $days[$wday], $mday, $months[$mon], 1900+$year, $hour ,$min, $sec;
 691         $date{'mday-time'} = sprintf "%d %s %02d:%02d", $mday, $months[$mon], $hour ,$min;
 692
 693         $tz =~ m/^([+\-][0-9][0-9])([0-9][0-9])$/;
 694         my $local = $epoch + ((int $1 + ($2/60)) * 3600);
 695         ($sec, $min, $hour, $mday, $mon, $year, $wday, $yday) = gmtime($local);
 696         $date{'hour_local'} = $hour;
 697         $date{'minute_local'} = $min;
 698         $date{'tz_local'} = $tz;
 699         return %date;
 700 }
 701
 702 # git-logo (cached in browser for one day)
 703 sub git_logo {
 704         print $cgi->header(-type => 'image/png', -expires => '+1d');
 705         # cat git-logo.png | hexdump -e '16/1 " %02x"  "\n"' | sed 's/ /\\x/g'
 706         print   "\x89\x50\x4e\x47\x0d\x0a\x1a\x0a\x00\x00\x00\x0d\x49\x48\x44\x52" .
 707                 "\x00\x00\x00\x48\x00\x00\x00\x1b\x04\x03\x00\x00\x00\x2d\xd9\xd4" .
 708                 "\x2d\x00\x00\x00\x18\x50\x4c\x54\x45\xff\xff\xff\x60\x60\x5d\xb0" .
 709                 "\xaf\xaa\x00\x80\x00\xce\xcd\xc7\xc0\x00\x00\xe8\xe8\xe6\xf7\xf7" .
 710                 "\xf6\x95\x0c\xa7\x47\x00\x00\x00\x73\x49\x44\x41\x54\x28\xcf\x63" .
 711                 "\x48\x67\x20\x04\x4a\x5c\x18\x0a\x08\x2a\x62\x53\x61\x20\x02\x08" .
 712                 "\x0d\x69\x45\xac\xa1\xa1\x01\x30\x0c\x93\x60\x36\x26\x52\x91\xb1" .
 713                 "\x01\x11\xd6\xe1\x55\x64\x6c\x6c\xcc\x6c\x6c\x0c\xa2\x0c\x70\x2a" .
 714                 "\x62\x06\x2a\xc1\x62\x1d\xb3\x01\x02\x53\xa4\x08\xe8\x00\x03\x18" .
 715                 "\x26\x56\x11\xd4\xe1\x20\x97\x1b\xe0\xb4\x0e\x35\x24\x71\x29\x82" .
 716                 "\x99\x30\xb8\x93\x0a\x11\xb9\x45\x88\xc1\x8d\xa0\xa2\x44\x21\x06" .
 717                 "\x27\x41\x82\x40\x85\xc1\x45\x89\x20\x70\x01\x00\xa4\x3d\x21\xc5" .
 718                 "\x12\x1c\x9a\xfe\x00\x00\x00\x00\x49\x45\x4e\x44\xae\x42\x60\x82";
 719 }
 720
 721 sub get_file_owner {
 722         my $path = shift;
 723
 724         my ($dev, $ino, $mode, $nlink, $st_uid, $st_gid, $rdev, $size) = stat($path);
 725         my ($name, $passwd, $uid, $gid, $quota, $comment, $gcos, $dir, $shell) = getpwuid($st_uid);
 726         if (!defined $gcos) {
 727                 return undef;
 728         }
 729         my $owner = $gcos;
 730         $owner =~ s/[,;].*$//;
 731         return $owner;
 732 }
 733
 734 sub git_read_projects {
 735         my @list;
 736
 737         if (-d $projects_list) {
 738                 # search in directory
 739                 my $dir = $projects_list;
 740                 opendir my $dh, $dir or return undef;
 741                 while (my $dir = readdir($dh)) {
 742                         if (-e "$projectroot/$dir/HEAD") {
 743                                 my $pr = {
 744                                         path => $dir,
 745                                 };
 746                                 push @list, $pr
 747                         }
 748                 }
 749                 closedir($dh);
 750         } elsif (-f $projects_list) {
 751                 # read from file(url-encoded):
 752                 # 'git%2Fgit.git Linus+Torvalds'
 753                 # 'libs%2Fklibc%2Fklibc.git H.+Peter+Anvin'
 754                 # 'linux%2Fhotplug%2Fudev.git Greg+Kroah-Hartman'
 755                 open my $fd , $projects_list or return undef;
 756                 while (my $line = <$fd>) {
 757                         chomp $line;
 758                         my ($path, $owner) = split ' ', $line;
 759                         $path = unescape($path);
 760                         $owner = unescape($owner);
 761                         if (!defined $path) {
 762                                 next;
 763                         }
 764                         if (-e "$projectroot/$path/HEAD") {
 765                                 my $pr = {
 766                                         path => $path,
 767                                         owner => $owner,
 768                                 };
 769                                 push @list, $pr
 770                         }
 771                 }
 772                 close $fd;
 773         }
 774         @list = sort {$a->{'path'} cmp $b->{'path'}} @list;
 775         return @list;
 776 }
 777
 778 sub git_project_list {
 779         my @list = git_read_projects();
 780         my @projects;
 781         if (!@list) {
 782                 die_error(undef, "No project found.");
 783         }
 784         foreach my $pr (@list) {
 785                 my $head = git_read_hash("$pr->{'path'}/HEAD");
 786                 if (!defined $head) {
 787                         next;
 788                 }
 789                 $ENV{'GIT_DIR'} = "$projectroot/$pr->{'path'}";
 790                 my %co = git_read_commit($head);
 791                 if (!%co) {
 792                         next;
 793                 }
 794                 $pr->{'commit'} = \%co;
 795                 if (!defined $pr->{'descr'}) {
 796                         my $descr = git_read_description($pr->{'path'}) || "";
 797                         $pr->{'descr'} = chop_str($descr, 25, 5);
 798                 }
 799                 if (!defined $pr->{'owner'}) {
 800                         $pr->{'owner'} = get_file_owner("$projectroot/$pr->{'path'}") || "";
 801                 }
 802                 push @projects, $pr;
 803         }
 804         git_header_html();
 805         if (-f $home_text) {
 806                 print "<div class=\"index_include\">\n";
 807                 open (my $fd, $home_text);
 808                 print <$fd>;
 809                 close $fd;
 810                 print "</div>\n";
 811         }
 812         print "<table cellspacing=\"0\">\n" .
 813               "<tr>\n";
 814         if (!defined($order) || (defined($order) && ($order eq "project"))) {
 815                 @projects = sort {$a->{'path'} cmp $b->{'path'}} @projects;
 816                 print "<th>Project</th>\n";
 817         } else {
 818                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?o=project"}, "Project") . "</th>\n";
 819         }
 820         if (defined($order) && ($order eq "descr")) {
 821                 @projects = sort {$a->{'descr'} cmp $b->{'descr'}} @projects;
 822                 print "<th>Description</th>\n";
 823         } else {
 824                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?o=descr"}, "Description") . "</th>\n";
 825         }
 826         if (defined($order) && ($order eq "owner")) {
 827                 @projects = sort {$a->{'owner'} cmp $b->{'owner'}} @projects;
 828                 print "<th>Owner</th>\n";
 829         } else {
 830                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?o=owner"}, "Owner") . "</th>\n";
 831         }
 832         if (defined($order) && ($order eq "age")) {
 833                 @projects = sort {$a->{'commit'}{'age'} <=> $b->{'commit'}{'age'}} @projects;
 834                 print "<th>Last Change</th>\n";
 835         } else {
 836                 print "<th>" . $cgi->a({-class => "header", -href => "$my_uri?o=age"}, "Last Change") . "</th>\n";
 837         }
 838         print "<th></th>\n" .
 839               "</tr>\n";
 840         my $alternate = 0;
 841         foreach my $pr (@projects) {
 842                 if ($alternate) {
 843                         print "<tr class=\"dark\">\n";
 844                 } else {
 845                         print "<tr class=\"light\">\n";
 846                 }
 847                 $alternate ^= 1;
 848                 print "<td>" . $cgi->a({-href => "$my_uri?p=$pr->{'path'};a=summary", -class => "list"}, escapeHTML($pr->{'path'})) . "</td>\n" .
 849                       "<td>$pr->{'descr'}</td>\n" .
 850                       "<td><i>" . chop_str($pr->{'owner'}, 15) . "</i></td>\n";
 851                 my $colored_age;
 852                 if ($pr->{'commit'}{'age'} < 60*60*2) {
 853                         $colored_age = "<span style =\"color: #009900;\"><b><i>$pr->{'commit'}{'age_string'}</i></b></span>";
 854                 } elsif ($pr->{'commit'}{'age'} < 60*60*24*2) {
 855                         $colored_age = "<span style =\"color: #009900;\"><i>$pr->{'commit'}{'age_string'}</i></span>";
 856                 } else {
 857                         $colored_age = "<i>$pr->{'commit'}{'age_string'}</i>";
 858                 }
 859                 print "<td>$colored_age</td>\n" .
 860                       "<td class=\"link\">" .
 861                       $cgi->a({-href => "$my_uri?p=$pr->{'path'};a=summary"}, "summary") .
 862                       " | " . $cgi->a({-href => "$my_uri?p=$pr->{'path'};a=shortlog"}, "shortlog") .
 863                       " | " . $cgi->a({-href => "$my_uri?p=$pr->{'path'};a=log"}, "log") .
 864                       "</td>\n" .
 865                       "</tr>\n";
 866         }
 867         print "</table>\n";
 868         git_footer_html();
 869 }
 870
 871 sub git_read_refs {
 872         my $ref_dir = shift;
 873         my @reflist;
 874
 875         my @refs;
 876         opendir my $dh, "$projectroot/$project/$ref_dir";
 877         while (my $dir = readdir($dh)) {
 878                 if ($dir =~ m/^\./) {
 879                         next;
 880                 }
 881                 if (-d "$projectroot/$project/$ref_dir/$dir") {
 882                         opendir my $dh2, "$projectroot/$project/$ref_dir/$dir";
 883                         my @subdirs = grep !m/^\./, readdir $dh2;
 884                         closedir($dh2);
 885                         foreach my $subdir (@subdirs) {
 886                                 push @refs, "$dir/$subdir"
 887                         }
 888                         next;
 889                 }
 890                 push @refs, $dir;
 891         }
 892         closedir($dh);
 893         foreach my $ref_file (@refs) {
 894                 my $ref_id = git_read_hash("$project/$ref_dir/$ref_file");
 895                 my $type = git_get_type($ref_id) || next;
 896                 my %ref_item;
 897                 my %co;
 898                 $ref_item{'type'} = $type;
 899                 $ref_item{'id'} = $ref_id;
 900                 $ref_item{'epoch'} = 0;
 901                 $ref_item{'age'} = "unknown";
 902                 if ($type eq "tag") {
 903                         my %tag = git_read_tag($ref_id);
 904                         $ref_item{'comment'} = $tag{'comment'};
 905                         if ($tag{'type'} eq "commit") {
 906                                 %co = git_read_commit($tag{'object'});
 907                                 $ref_item{'epoch'} = $co{'committer_epoch'};
 908                                 $ref_item{'age'} = $co{'age_string'};
 909                         } elsif (defined($tag{'epoch'})) {
 910                                 my $age = time - $tag{'epoch'};
 911                                 $ref_item{'epoch'} = $tag{'epoch'};
 912                                 $ref_item{'age'} = age_string($age);
 913                         }
 914                         $ref_item{'reftype'} = $tag{'type'};
 915                         $ref_item{'name'} = $tag{'name'};
 916                         $ref_item{'refid'} = $tag{'object'};
 917                 } elsif ($type eq "commit"){
 918                         %co = git_read_commit($ref_id);
 919                         $ref_item{'reftype'} = "commit";
 920                         $ref_item{'name'} = $ref_file;
 921                         $ref_item{'title'} = $co{'title'};
 922                         $ref_item{'refid'} = $ref_id;
 923                         $ref_item{'epoch'} = $co{'committer_epoch'};
 924                         $ref_item{'age'} = $co{'age_string'};
 925                 }
 926
 927                 push @reflist, \%ref_item;
 928         }
 929         # sort tags by age
 930         @reflist = sort {$b->{'epoch'} <=> $a->{'epoch'}} @reflist;
 931         return \@reflist;
 932 }
 933
 934 sub git_summary {
 935         my $descr = git_read_description($project) || "none";
 936         my $head = git_read_hash("$project/HEAD");
 937         my %co = git_read_commit($head);
 938         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
 939
 940         my $owner;
 941         if (-f $projects_list) {
 942                 open (my $fd , $projects_list);
 943                 while (my $line = <$fd>) {
 944                         chomp $line;
 945                         my ($pr, $ow) = split ' ', $line;
 946                         $pr = unescape($pr);
 947                         $ow = unescape($ow);
 948                         if ($pr eq $project) {
 949                                 $owner = $ow;
 950                                 last;
 951                         }
 952                 }
 953                 close $fd;
 954         }
 955         if (!defined $owner) {
 956                 $owner = get_file_owner("$projectroot/$project");
 957         }
 958
 959         git_header_html();
 960         print "<div class=\"page_nav\">\n" .
 961               "summary".
 962               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
 963               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log"}, "log") .
 964               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$head"}, "commit") .
 965               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$head"}, "commitdiff") .
 966               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree"}, "tree") .
 967               "<br/><br/>\n" .
 968               "</div>\n";
 969         print "<div class=\"title\">&nbsp;</div>\n";
 970         print "<table cellspacing=\"0\">\n" .
 971               "<tr><td>description</td><td>" . escapeHTML($descr) . "</td></tr>\n" .
 972               "<tr><td>owner</td><td>$owner</td></tr>\n" .
 973               "<tr><td>last change</td><td>$cd{'rfc2822'}</td></tr>\n" .
 974               "</table>\n";
 975         open my $fd, "-|", "$gitbin/git-rev-list --max-count=17 " . git_read_hash("$project/HEAD") or die_error(undef, "Open failed.");
 976         my (@revlist) = map { chomp; $_ } <$fd>;
 977         close $fd;
 978         print "<div>\n" .
 979               $cgi->a({-href => "$my_uri?p=$project;a=shortlog", -class => "title"}, "shortlog") .
 980               "</div>\n";
 981         my $i = 16;
 982         print "<table cellspacing=\"0\">\n";
 983         my $alternate = 0;
 984         foreach my $commit (@revlist) {
 985                 my %co = git_read_commit($commit);
 986                 my %ad = date_str($co{'author_epoch'});
 987                 if ($alternate) {
 988                         print "<tr class=\"dark\">\n";
 989                 } else {
 990                         print "<tr class=\"light\">\n";
 991                 }
 992                 $alternate ^= 1;
 993                 if ($i-- > 0) {
 994                         print "<td><i>$co{'age_string'}</i></td>\n" .
 995                               "<td><i>" . escapeHTML(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
 996                               "<td>";
 997                         if (length($co{'title_short'}) < length($co{'title'})) {
 998                                 print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "list", -title => "$co{'title'}"},
 999                                       "<b>" . escapeHTML($co{'title_short'}) . "</b>");
1000                         } else {
1001                                 print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "list"},
1002                                       "<b>" . escapeHTML($co{'title'}) . "</b>");
1003                         }
1004                         print "</td>\n" .
1005                               "<td class=\"link\">" .
1006                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
1007                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "commitdiff") .
1008                               "</td>\n" .
1009                               "</tr>";
1010                 } else {
1011                         print "<td>" . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "...") . "</td>\n" .
1012                         "</tr>";
1013                         last;
1014                 }
1015         }
1016         print "</table\n>";
1017
1018         my $taglist = git_read_refs("refs/tags");
1019         if (defined @$taglist) {
1020                 print "<div>\n" .
1021                       $cgi->a({-href => "$my_uri?p=$project;a=tags", -class => "title"}, "tags") .
1022                       "</div>\n";
1023                 my $i = 16;
1024                 print "<table cellspacing=\"0\">\n";
1025                 my $alternate = 0;
1026                 foreach my $entry (@$taglist) {
1027                         my %tag = %$entry;
1028                         my $comment_lines = $tag{'comment'};
1029                         my $comment = shift @$comment_lines;
1030                         if (defined($comment)) {
1031                                 $comment = chop_str($comment, 30, 5);
1032                         }
1033                         if ($alternate) {
1034                                 print "<tr class=\"dark\">\n";
1035                         } else {
1036                                 print "<tr class=\"light\">\n";
1037                         }
1038                         $alternate ^= 1;
1039                         if ($i-- > 0) {
1040                                 print "<td><i>$tag{'age'}</i></td>\n" .
1041                                       "<td>" .
1042                                       $cgi->a({-href => "$my_uri?p=$project;a=$tag{'reftype'};h=$tag{'refid'}", -class => "list"},
1043                                       "<b>" . escapeHTML($tag{'name'}) . "</b>") .
1044                                       "</td>\n" .
1045                                       "<td>";
1046                                 if (defined($comment)) {
1047                                       print $cgi->a({-class => "list", -href => "$my_uri?p=$project;a=tag;h=$tag{'id'}"}, $comment);
1048                                 }
1049                                 print "</td>\n" .
1050                                       "<td class=\"link\">";
1051                                 if ($tag{'type'} eq "tag") {
1052                                       print $cgi->a({-href => "$my_uri?p=$project;a=tag;h=$tag{'id'}"}, "tag") . " | ";
1053                                 }
1054                                 print $cgi->a({-href => "$my_uri?p=$project;a=$tag{'reftype'};h=$tag{'refid'}"}, $tag{'reftype'});
1055                                 if ($tag{'reftype'} eq "commit") {
1056                                       print " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$tag{'name'}"}, "shortlog") .
1057                                             " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$tag{'refid'}"}, "log");
1058                                 }
1059                                 print "</td>\n" .
1060                                       "</tr>";
1061                         } else {
1062                                 print "<td>" . $cgi->a({-href => "$my_uri?p=$project;a=tags"}, "...") . "</td>\n" .
1063                                 "</tr>";
1064                                 last;
1065                         }
1066                 }
1067                 print "</table\n>";
1068         }
1069
1070         my $headlist = git_read_refs("refs/heads");
1071         if (defined @$headlist) {
1072                 print "<div>\n" .
1073                       $cgi->a({-href => "$my_uri?p=$project;a=heads", -class => "title"}, "heads") .
1074                       "</div>\n";
1075                 my $i = 16;
1076                 print "<table cellspacing=\"0\">\n";
1077                 my $alternate = 0;
1078                 foreach my $entry (@$headlist) {
1079                         my %tag = %$entry;
1080                         if ($alternate) {
1081                                 print "<tr class=\"dark\">\n";
1082                         } else {
1083                                 print "<tr class=\"light\">\n";
1084                         }
1085                         $alternate ^= 1;
1086                         if ($i-- > 0) {
1087                                 print "<td><i>$tag{'age'}</i></td>\n" .
1088                                       "<td>" .
1089                                       $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$tag{'name'}", -class => "list"},
1090                                       "<b>" . escapeHTML($tag{'name'}) . "</b>") .
1091                                       "</td>\n" .
1092                                       "<td class=\"link\">" .
1093                                       $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$tag{'name'}"}, "shortlog") .
1094                                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$tag{'name'}"}, "log") .
1095                                       "</td>\n" .
1096                                       "</tr>";
1097                         } else {
1098                                 print "<td>" . $cgi->a({-href => "$my_uri?p=$project;a=heads"}, "...") . "</td>\n" .
1099                                 "</tr>";
1100                                 last;
1101                         }
1102                 }
1103                 print "</table\n>";
1104         }
1105         git_footer_html();
1106 }
1107
1108 sub git_tag {
1109         my $head = git_read_hash("$project/HEAD");
1110         git_header_html();
1111         print "<div class=\"page_nav\">\n" .
1112               $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1113               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
1114               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log"}, "log") .
1115               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$head"}, "commit") .
1116               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$head"}, "commitdiff") .
1117               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;hb=$head"}, "tree") . "<br/>\n" .
1118               "<br/>\n" .
1119               "</div>\n";
1120         my %tag = git_read_tag($hash);
1121         print "<div>\n" .
1122               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($tag{'name'})) . "\n" .
1123               "</div>\n";
1124         print "<div class=\"title_text\">\n" .
1125               "<table cellspacing=\"0\">\n" .
1126               "<tr>\n" .
1127               "<td>object</td>\n" .
1128               "<td>" . $cgi->a({-class => "list", -href => "$my_uri?p=$project;a=$tag{'type'};h=$tag{'object'}"}, $tag{'object'}) . "</td>\n" .
1129               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?p=$project;a=$tag{'type'};h=$tag{'object'}"}, $tag{'type'}) . "</td>\n" .
1130               "</tr>\n";
1131         if (defined($tag{'author'})) {
1132                 my %ad = date_str($tag{'epoch'}, $tag{'tz'});
1133                 print "<tr><td>author</td><td>" . escapeHTML($tag{'author'}) . "</td></tr>\n";
1134                 print "<tr><td></td><td>" . $ad{'rfc2822'} . sprintf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'}) . "</td></tr>\n";
1135         }
1136         print "</table>\n\n" .
1137               "</div>\n";
1138         print "<div class=\"page_body\">";
1139         my $comment = $tag{'comment'};
1140         foreach my $line (@$comment) {
1141                 print escapeHTML($line) . "<br/>\n";
1142         }
1143         print "</div>\n";
1144         git_footer_html();
1145 }
1146
1147 sub git_tags {
1148         my $head = git_read_hash("$project/HEAD");
1149         git_header_html();
1150         print "<div class=\"page_nav\">\n" .
1151               $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1152               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
1153               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log"}, "log") .
1154               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$head"}, "commit") .
1155               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$head"}, "commitdiff") .
1156               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;hb=$head"}, "tree") . "<br/>\n" .
1157               "<br/>\n" .
1158               "</div>\n";
1159         my $taglist = git_read_refs("refs/tags");
1160         print "<div>\n" .
1161               $cgi->a({-href => "$my_uri?p=$project;a=summary", -class => "title"}, "&nbsp;") .
1162               "</div>\n";
1163         print "<table cellspacing=\"0\">\n";
1164         my $alternate = 0;
1165         if (defined @$taglist) {
1166                 foreach my $entry (@$taglist) {
1167                         my %tag = %$entry;
1168                         my $comment_lines = $tag{'comment'};
1169                         my $comment = shift @$comment_lines;
1170                         if (defined($comment)) {
1171                                 $comment = chop_str($comment, 30, 5);
1172                         }
1173                         if ($alternate) {
1174                                 print "<tr class=\"dark\">\n";
1175                         } else {
1176                                 print "<tr class=\"light\">\n";
1177                         }
1178                         $alternate ^= 1;
1179                         print "<td><i>$tag{'age'}</i></td>\n" .
1180                               "<td>" .
1181                               $cgi->a({-href => "$my_uri?p=$project;a=$tag{'reftype'};h=$tag{'refid'}", -class => "list"},
1182                               "<b>" . escapeHTML($tag{'name'}) . "</b>") .
1183                               "</td>\n" .
1184                               "<td>";
1185                         if (defined($comment)) {
1186                               print $cgi->a({-class => "list", -href => "$my_uri?p=$project;a=tag;h=$tag{'id'}"}, $comment);
1187                         }
1188                         print "</td>\n" .
1189                               "<td class=\"link\">";
1190                         if ($tag{'type'} eq "tag") {
1191                               print $cgi->a({-href => "$my_uri?p=$project;a=tag;h=$tag{'id'}"}, "tag") . " | ";
1192                         }
1193                         print $cgi->a({-href => "$my_uri?p=$project;a=$tag{'reftype'};h=$tag{'refid'}"}, $tag{'reftype'});
1194                         if ($tag{'reftype'} eq "commit") {
1195                               print " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$tag{'name'}"}, "shortlog") .
1196                                     " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$tag{'refid'}"}, "log");
1197                         }
1198                         print "</td>\n" .
1199                               "</tr>";
1200                 }
1201         }
1202         print "</table\n>";
1203         git_footer_html();
1204 }
1205
1206 sub git_heads {
1207         my $head = git_read_hash("$project/HEAD");
1208         git_header_html();
1209         print "<div class=\"page_nav\">\n" .
1210               $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1211               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
1212               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log"}, "log") .
1213               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$head"}, "commit") .
1214               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$head"}, "commitdiff") .
1215               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;hb=$head"}, "tree") . "<br/>\n" .
1216               "<br/>\n" .
1217               "</div>\n";
1218         my $taglist = git_read_refs("refs/heads");
1219         print "<div>\n" .
1220               $cgi->a({-href => "$my_uri?p=$project;a=summary", -class => "title"}, "&nbsp;") .
1221               "</div>\n";
1222         print "<table cellspacing=\"0\">\n";
1223         my $alternate = 0;
1224         if (defined @$taglist) {
1225                 foreach my $entry (@$taglist) {
1226                         my %tag = %$entry;
1227                         if ($alternate) {
1228                                 print "<tr class=\"dark\">\n";
1229                         } else {
1230                                 print "<tr class=\"light\">\n";
1231                         }
1232                         $alternate ^= 1;
1233                         print "<td><i>$tag{'age'}</i></td>\n" .
1234                               "<td>" .
1235                               $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$tag{'name'}", -class => "list"}, "<b>" . escapeHTML($tag{'name'}) . "</b>") .
1236                               "</td>\n" .
1237                               "<td class=\"link\">" .
1238                               $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$tag{'name'}"}, "shortlog") .
1239                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$tag{'name'}"}, "log") .
1240                               "</td>\n" .
1241                               "</tr>";
1242                 }
1243         }
1244         print "</table\n>";
1245         git_footer_html();
1246 }
1247
1248 sub git_get_hash_by_path {
1249         my $base = shift;
1250         my $path = shift || return undef;
1251
1252         my $tree = $base;
1253         my @parts = split '/', $path;
1254         while (my $part = shift @parts) {
1255                 open my $fd, "-|", "$gitbin/git-ls-tree $tree" or die_error(undef, "Open git-ls-tree failed.");
1256                 my (@entries) = map { chomp; $_ } <$fd>;
1257                 close $fd or return undef;
1258                 foreach my $line (@entries) {
1259                         #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1260                         $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1261                         my $t_mode = $1;
1262                         my $t_type = $2;
1263                         my $t_hash = $3;
1264                         my $t_name = $4;
1265                         if ($t_name eq $part) {
1266                                 if (!(@parts)) {
1267                                         return $t_hash;
1268                                 }
1269                                 if ($t_type eq "tree") {
1270                                         $tree = $t_hash;
1271                                 }
1272                                 last;
1273                         }
1274                 }
1275         }
1276 }
1277
1278 sub git_blob {
1279         if (!defined $hash && defined $file_name) {
1280                 my $base = $hash_base || git_read_hash("$project/HEAD");
1281                 $hash = git_get_hash_by_path($base, $file_name, "blob");
1282         }
1283         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or die_error(undef, "Open failed.");
1284         my $base = $file_name || "";
1285         git_header_html();
1286         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1287                 print "<div class=\"page_nav\">\n" .
1288                       $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1289                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
1290                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=log"}, "log") .
1291                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
1292                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
1293                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash_base"}, "tree") . "<br/>\n";
1294                 print $cgi->a({-href => "$my_uri?p=$project;a=blob_plain;h=$hash"}, "plain") . "<br/>\n" .
1295                       "</div>\n";
1296                 print "<div>" .
1297                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) .
1298                       "</div>\n";
1299         } else {
1300                 print "<div class=\"page_nav\">\n" .
1301                       "<br/><br/></div>\n" .
1302                       "<div class=\"title\">$hash</div>\n";
1303         }
1304         if (defined $file_name) {
1305                 print "<div class=\"page_path\"><b>$file_name</b></div>\n";
1306         }
1307         print "<div class=\"page_body\">\n";
1308         my $nr;
1309         while (my $line = <$fd>) {
1310                 chomp $line;
1311                 $nr++;
1312                 while ((my $pos = index($line, "\t")) != -1) {
1313                         if (my $count = (8 - ($pos % 8))) {
1314                                 my $spaces = ' ' x $count;
1315                                 $line =~ s/\t/$spaces/;
1316                         }
1317                 }
1318                 printf "<div class=\"pre\"><a id=\"l%i\" href=\"#l%i\" class=\"linenr\">%4i</a> %s</div>\n", $nr, $nr, $nr, escapeHTML($line);
1319         }
1320         close $fd or print "Reading blob failed.\n";
1321         print "</div>";
1322         git_footer_html();
1323 }
1324
1325 sub git_blob_plain {
1326         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
1327         open my $fd, "-|", "$gitbin/git-cat-file blob $hash" or return;
1328         undef $/;
1329         print <$fd>;
1330         $/ = "\n";
1331         close $fd;
1332 }
1333
1334 sub git_tree {
1335         if (!defined $hash) {
1336                 $hash = git_read_hash("$project/HEAD");
1337                 if (defined $file_name) {
1338                         my $base = $hash_base || git_read_hash("$project/HEAD");
1339                         $hash = git_get_hash_by_path($base, $file_name, "tree");
1340                 }
1341                 if (!defined $hash_base) {
1342                         $hash_base = git_read_hash("$project/HEAD");
1343                 }
1344         }
1345         open my $fd, "-|", "$gitbin/git-ls-tree $hash" or die_error(undef, "Open git-ls-tree failed.");
1346         my (@entries) = map { chomp; $_ } <$fd>;
1347         close $fd or die_error(undef, "Reading tree failed.");
1348
1349         git_header_html();
1350         my $base_key = "";
1351         my $file_key = "";
1352         my $base = "";
1353         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1354                 $base_key = ";hb=$hash_base";
1355                 print "<div class=\"page_nav\">\n" .
1356                       $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1357                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$hash_base"}, "shortlog") .
1358                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$hash_base"}, "log") .
1359                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
1360                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
1361                       " | tree" .
1362                       "<br/><br/>\n" .
1363                       "</div>\n";
1364                 print "<div>\n" .
1365                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1366                       "</div>\n";
1367         } else {
1368                 print "<div class=\"page_nav\">\n";
1369                 print "<br/><br/></div>\n";
1370                 print "<div class=\"title\">$hash</div>\n";
1371         }
1372         if (defined $file_name) {
1373                 $base = "$file_name/";
1374                 print "<div class=\"page_path\"><b>/$file_name</b></div>\n";
1375         } else {
1376                 print "<div class=\"page_path\"><b>/</b></div>\n";
1377         }
1378         print "<div class=\"page_body\">\n";
1379         print "<table cellspacing=\"0\">\n";
1380         my $alternate = 0;
1381         foreach my $line (@entries) {
1382                 #'100644        blob    0fa3f3a66fb6a137f6ec2c19351ed4d807070ffa        panic.c'
1383                 $line =~ m/^([0-9]+) (.+) ([0-9a-fA-F]{40})\t(.+)$/;
1384                 my $t_mode = $1;
1385                 my $t_type = $2;
1386                 my $t_hash = $3;
1387                 my $t_name = $4;
1388                 $file_key = ";f=$base$t_name";
1389                 if ($alternate) {
1390                         print "<tr class=\"dark\">\n";
1391                 } else {
1392                         print "<tr class=\"light\">\n";
1393                 }
1394                 $alternate ^= 1;
1395                 print "<td style=\"font-family:monospace\">" . mode_str($t_mode) . "</td>\n";
1396                 if ($t_type eq "blob") {
1397                         print "<td class=\"list\">" .
1398                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash" . $base_key . $file_key, -class => "list"}, $t_name) .
1399                               "</td>\n" .
1400                               "<td class=\"link\">" .
1401                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$t_hash" . $base_key . $file_key}, "blob") .
1402                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash_base" . $file_key}, "history") .
1403                               "</td>\n";
1404                 } elsif ($t_type eq "tree") {
1405                         print "<td class=\"list\">" .
1406                               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash" . $base_key . $file_key}, $t_name) .
1407                               "</td>\n" .
1408                               "<td class=\"link\">" .
1409                               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$t_hash" . $base_key . $file_key}, "tree") .
1410                               "</td>\n";
1411                 }
1412                 print "</tr>\n";
1413         }
1414         print "</table>\n" .
1415               "</div>";
1416         git_footer_html();
1417 }
1418
1419 sub git_rss {
1420         # http://www.notestips.com/80256B3A007F2692/1/NAMO5P9UPQ
1421         open my $fd, "-|", "$gitbin/git-rev-list --max-count=150 " . git_read_hash("$project/HEAD") or die_error(undef, "Open failed.");
1422         my (@revlist) = map { chomp; $_ } <$fd>;
1423         close $fd or die_error(undef, "Reading rev-list failed.");
1424         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1425         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1426               "<rss version=\"2.0\" xmlns:content=\"http://purl.org/rss/1.0/modules/content/\">\n";
1427         print "<channel>\n";
1428         print "<title>$project</title>\n".
1429               "<link>" . escapeHTML("$my_url?p=$project;a=summary") . "</link>\n".
1430               "<description>$project log</description>\n".
1431               "<language>en</language>\n";
1432
1433         for (my $i = 0; $i <= $#revlist; $i++) {
1434                 my $commit = $revlist[$i];
1435                 my %co = git_read_commit($commit);
1436                 # we read 150, we always show 30 and the ones more recent than 48 hours
1437                 if (($i >= 20) && ((time - $co{'committer_epoch'}) > 48*60*60)) {
1438                         last;
1439                 }
1440                 my %cd = date_str($co{'committer_epoch'});
1441                 open $fd, "-|", "$gitbin/git-diff-tree -r $co{'parent'} $co{'id'}" or next;
1442                 my @difftree = map { chomp; $_ } <$fd>;
1443                 close $fd or next;
1444                 print "<item>\n" .
1445                       "<title>" .
1446                       sprintf("%d %s %02d:%02d", $cd{'mday'}, $cd{'month'}, $cd{'hour'}, $cd{'minute'}) . " - " . escapeHTML($co{'title'}) .
1447                       "</title>\n" .
1448                       "<author>" . escapeHTML($co{'author'}) . "</author>\n" .
1449                       "<pubDate>$cd{'rfc2822'}</pubDate>\n" .
1450                       "<guid isPermaLink=\"true\">" . escapeHTML("$my_url?p=$project;a=commit;h=$commit") . "</guid>\n" .
1451                       "<link>" . escapeHTML("$my_url?p=$project;a=commit;h=$commit") . "</link>\n" .
1452                       "<description>" . escapeHTML($co{'title'}) . "</description>\n" .
1453                       "<content:encoded>" .
1454                       "<![CDATA[\n";
1455                 my $comment = $co{'comment'};
1456                 foreach my $line (@$comment) {
1457                         print "$line<br/>\n";
1458                 }
1459                 print "<br/>\n";
1460                 foreach my $line (@difftree) {
1461                         if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1462                                 next;
1463                         }
1464                         my $file = $7;
1465                         print "$file<br/>\n";
1466                 }
1467                 print "]]>\n" .
1468                       "</content:encoded>\n" .
1469                       "</item>\n";
1470         }
1471         print "</channel></rss>";
1472 }
1473
1474 sub git_opml {
1475         my @list = git_read_projects();
1476
1477         print $cgi->header(-type => 'text/xml', -charset => 'utf-8');
1478         print "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n".
1479               "<opml version=\"1.0\">\n".
1480               "<head>".
1481               "  <title>Git OPML Export</title>\n".
1482               "</head>\n".
1483               "<body>\n".
1484               "<outline text=\"git RSS feeds\">\n";
1485
1486         foreach my $pr (@list) {
1487                 my %proj = %$pr;
1488                 my $head = git_read_hash("$proj{'path'}/HEAD");
1489                 if (!defined $head) {
1490                         next;
1491                 }
1492                 $ENV{'GIT_DIR'} = "$projectroot/$proj{'path'}";
1493                 my %co = git_read_commit($head);
1494                 if (!%co) {
1495                         next;
1496                 }
1497
1498                 my $path = escapeHTML(chop_str($proj{'path'}, 25, 5));
1499                 my $rss =  "$my_url?p=$proj{'path'};a=rss";
1500                 my $html =  "$my_url?p=$proj{'path'};a=summary";
1501                 print "<outline type=\"rss\" text=\"$path\" title=\"$path\" xmlUrl=\"$rss\" htmlUrl=\"$html\"/>\n";
1502         }
1503         print "</outline>\n".
1504               "</body>\n".
1505               "</opml>\n";
1506 }
1507
1508 sub git_log {
1509         my $head = git_read_hash("$project/HEAD");
1510         if (!defined $hash) {
1511                 $hash = $head;
1512         }
1513         if (!defined $page) {
1514                 $page = 0;
1515         }
1516         git_header_html();
1517         print "<div class=\"page_nav\">\n";
1518         print $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1519               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$hash"}, "shortlog") .
1520               " | log" .
1521               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") .
1522               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") .
1523               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash;hb=$hash"}, "tree") . "<br/>\n";
1524
1525         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
1526         open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
1527         my (@revlist) = map { chomp; $_ } <$fd>;
1528         close $fd;
1529
1530         if ($hash ne $head || $page) {
1531                 print $cgi->a({-href => "$my_uri?p=$project;a=log"}, "HEAD");
1532         } else {
1533                 print "HEAD";
1534         }
1535         if ($page > 0) {
1536                 print " &sdot; " .
1537                 $cgi->a({-href => "$my_uri?p=$project;a=log;h=$hash;pg=" . ($page-1), -accesskey => "p", -title => "Alt-p"}, "prev");
1538         } else {
1539                 print " &sdot; prev";
1540         }
1541         if ($#revlist >= (100 * ($page+1)-1)) {
1542                 print " &sdot; " .
1543                 $cgi->a({-href => "$my_uri?p=$project;a=log;h=$hash;pg=" . ($page+1), -accesskey => "n", -title => "Alt-n"}, "next");
1544         } else {
1545                 print " &sdot; next";
1546         }
1547         print "<br/>\n" .
1548               "</div>\n";
1549         if (!@revlist) {
1550                 print "<div>\n" .
1551                       $cgi->a({-href => "$my_uri?p=$project;a=summary", -class => "title"}, "&nbsp;") .
1552                       "</div>\n";
1553                 my %co = git_read_commit($hash);
1554                 print "<div class=\"page_body\"> Last change $co{'age_string'}.<br/><br/></div>\n";
1555         }
1556         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
1557                 my $commit = $revlist[$i];
1558                 my %co = git_read_commit($commit);
1559                 next if !%co;
1560                 my %ad = date_str($co{'author_epoch'});
1561                 print "<div>\n" .
1562                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "title"},
1563                       "<span class=\"age\">$co{'age_string'}</span>" . escapeHTML($co{'title'})) . "\n" .
1564                       "</div>\n";
1565                 print "<div class=\"title_text\">\n" .
1566                       "<div class=\"log_link\">\n" .
1567                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
1568                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "commitdiff") .
1569                       "<br/>\n" .
1570                       "</div>\n" .
1571                       "<i>" . escapeHTML($co{'author_name'}) .  " [$ad{'rfc2822'}]</i><br/>\n" .
1572                       "</div>\n" .
1573                       "<div class=\"log_body\">\n";
1574                 my $comment = $co{'comment'};
1575                 my $empty = 0;
1576                 foreach my $line (@$comment) {
1577                         if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1578                                 next;
1579                         }
1580                         if ($line eq "") {
1581                                 if ($empty) {
1582                                         next;
1583                                 }
1584                                 $empty = 1;
1585                         } else {
1586                                 $empty = 0;
1587                         }
1588                         print format_log_line_html($line) . "<br/>\n";
1589                 }
1590                 if (!$empty) {
1591                         print "<br/>\n";
1592                 }
1593                 print "</div>\n";
1594         }
1595         git_footer_html();
1596 }
1597
1598 sub git_commit {
1599         my %co = git_read_commit($hash);
1600         if (!%co) {
1601                 die_error(undef, "Unknown commit object.");
1602         }
1603         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1604         my %cd = date_str($co{'committer_epoch'}, $co{'committer_tz'});
1605
1606         my @difftree;
1607         my $root = "";
1608         my $parent = $co{'parent'};
1609         if (!defined $parent) {
1610                 $root = " --root";
1611                 $parent = "";
1612         }
1613         open my $fd, "-|", "$gitbin/git-diff-tree -r -M $root $parent $hash" or die_error(undef, "Open failed.");
1614         @difftree = map { chomp; $_ } <$fd>;
1615         close $fd or die_error(undef, "Reading diff-tree failed.");
1616         git_header_html();
1617         print "<div class=\"page_nav\">\n" .
1618               $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1619               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$hash"}, "shortlog") .
1620               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$hash"}, "log") .
1621               " | commit";
1622         if (defined $co{'parent'}) {
1623                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff");
1624         }
1625         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash"}, "tree") . "\n" .
1626               "<br/><br/></div>\n";
1627         if (defined $co{'parent'}) {
1628                 print "<div>\n" .
1629                       $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1630                       "</div>\n";
1631         } else {
1632                 print "<div>\n" .
1633                       $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1634                       "</div>\n";
1635         }
1636         print "<div class=\"title_text\">\n" .
1637               "<table cellspacing=\"0\">\n";
1638         print "<tr><td>author</td><td>" . escapeHTML($co{'author'}) . "</td></tr>\n".
1639               "<tr>" .
1640               "<td></td><td> $ad{'rfc2822'}";
1641         if ($ad{'hour_local'} < 6) {
1642                 printf(" (<span style=\"color: #cc0000;\">%02d:%02d</span> %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1643         } else {
1644                 printf(" (%02d:%02d %s)", $ad{'hour_local'}, $ad{'minute_local'}, $ad{'tz_local'});
1645         }
1646         print "</td>" .
1647               "</tr>\n";
1648         print "<tr><td>committer</td><td>" . escapeHTML($co{'committer'}) . "</td></tr>\n";
1649         print "<tr><td></td><td> $cd{'rfc2822'}" . sprintf(" (%02d:%02d %s)", $cd{'hour_local'}, $cd{'minute_local'}, $cd{'tz_local'}) . "</td></tr>\n";
1650         print "<tr><td>commit</td><td style=\"font-family:monospace\">$co{'id'}</td></tr>\n";
1651         print "<tr>" .
1652               "<td>tree</td>" .
1653               "<td style=\"font-family:monospace\">" .
1654               $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash", class => "list"}, $co{'tree'}) .
1655               "</td>" .
1656               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash"}, "tree") .
1657               "</td>" .
1658               "</tr>\n";
1659         my $parents  = $co{'parents'};
1660         foreach my $par (@$parents) {
1661                 print "<tr>" .
1662                       "<td>parent</td>" .
1663                       "<td style=\"font-family:monospace\">" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par", class => "list"}, $par) . "</td>" .
1664                       "<td class=\"link\">" .
1665                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$par"}, "commit") .
1666                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash;hp=$par"}, "commitdiff") .
1667                       "</td>" .
1668                       "</tr>\n";
1669         }
1670         print "</table>".
1671               "</div>\n";
1672         print "<div class=\"page_body\">\n";
1673         my $comment = $co{'comment'};
1674         my $empty = 0;
1675         my $signed = 0;
1676         foreach my $line (@$comment) {
1677                 # print only one empty line
1678                 if ($line eq "") {
1679                         if ($empty || $signed) {
1680                                 next;
1681                         }
1682                         $empty = 1;
1683                 } else {
1684                         $empty = 0;
1685                 }
1686                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1687                         $signed = 1;
1688                         print "<span style=\"color: #888888\">" . escapeHTML($line) . "</span><br/>\n";
1689                 } else {
1690                         $signed = 0;
1691                         print format_log_line_html($line) . "<br/>\n";
1692                 }
1693         }
1694         print "</div>\n";
1695         print "<div class=\"list_head\">\n";
1696         if ($#difftree > 10) {
1697                 print(($#difftree + 1) . " files changed:\n");
1698         }
1699         print "</div>\n";
1700         print "<table cellspacing=\"0\">\n";
1701         my $alternate = 0;
1702         foreach my $line (@difftree) {
1703                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
1704                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
1705                 if (!($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)([0-9]{0,3})\t(.*)$/)) {
1706                         next;
1707                 }
1708                 my $from_mode = $1;
1709                 my $to_mode = $2;
1710                 my $from_id = $3;
1711                 my $to_id = $4;
1712                 my $status = $5;
1713                 my $similarity = $6;
1714                 my $file = $7;
1715                 if ($alternate) {
1716                         print "<tr class=\"dark\">\n";
1717                 } else {
1718                         print "<tr class=\"light\">\n";
1719                 }
1720                 $alternate ^= 1;
1721                 if ($status eq "A") {
1722                         my $mode_chng = "";
1723                         if (S_ISREG(oct $to_mode)) {
1724                                 $mode_chng = sprintf(" with mode: %04o", (oct $to_mode) & 0777);
1725                         }
1726                         print "<td>" .
1727                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file", -class => "list"}, escapeHTML($file)) . "</td>\n" .
1728                               "<td><span style=\"color: #008000;\">[new " . file_type($to_mode) . "$mode_chng]</span></td>\n" .
1729                               "<td class=\"link\">" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, "blob") . "</td>\n";
1730                 } elsif ($status eq "D") {
1731                         print "<td>" .
1732                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$file", -class => "list"}, escapeHTML($file)) . "</td>\n" .
1733                               "<td><span style=\"color: #c00000;\">[deleted " . file_type($from_mode). "]</span></td>\n" .
1734                               "<td class=\"link\">" .
1735                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$file"}, "blob") .
1736                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") .
1737                               "</td>\n"
1738                 } elsif ($status eq "M" || $status eq "T") {
1739                         my $mode_chnge = "";
1740                         if ($from_mode != $to_mode) {
1741                                 $mode_chnge = " <span style=\"color: #777777;\">[changed";
1742                                 if (((oct $from_mode) & S_IFMT) != ((oct $to_mode) & S_IFMT)) {
1743                                         $mode_chnge .= " from " . file_type($from_mode) . " to " . file_type($to_mode);
1744                                 }
1745                                 if (((oct $from_mode) & 0777) != ((oct $to_mode) & 0777)) {
1746                                         if (S_ISREG($from_mode) && S_ISREG($to_mode)) {
1747                                                 $mode_chnge .= sprintf(" mode: %04o->%04o", (oct $from_mode) & 0777, (oct $to_mode) & 0777);
1748                                         } elsif (S_ISREG($to_mode)) {
1749                                                 $mode_chnge .= sprintf(" mode: %04o", (oct $to_mode) & 0777);
1750                                         }
1751                                 }
1752                                 $mode_chnge .= "]</span>\n";
1753                         }
1754                         print "<td>";
1755                         if ($to_id ne $from_id) {
1756                                 print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file", -class => "list"}, escapeHTML($file));
1757                         } else {
1758                                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file", -class => "list"}, escapeHTML($file));
1759                         }
1760                         print "</td>\n" .
1761                               "<td>$mode_chnge</td>\n" .
1762                               "<td class=\"link\">";
1763                         print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, "blob");
1764                         if ($to_id ne $from_id) {
1765                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$file"}, "diff");
1766                         }
1767                         print " | " . $cgi->a({-href => "$my_uri?p=$project;a=history;h=$hash;f=$file"}, "history") . "\n";
1768                         print "</td>\n";
1769                 } elsif ($status eq "R") {
1770                         my ($from_file, $to_file) = split "\t", $file;
1771                         my $mode_chng = "";
1772                         if ($from_mode != $to_mode) {
1773                                 $mode_chng = sprintf(", mode: %04o", (oct $to_mode) & 0777);
1774                         }
1775                         print "<td>" .
1776                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file", -class => "list"}, escapeHTML($to_file)) . "</td>\n" .
1777                               "<td><span style=\"color: #777777;\">[moved from " .
1778                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$from_file", -class => "list"}, escapeHTML($from_file)) .
1779                               " with " . (int $similarity) . "% similarity$mode_chng]</span></td>\n" .
1780                               "<td class=\"link\">" .
1781                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$to_file"}, "blob");
1782                         if ($to_id ne $from_id) {
1783                                 print " | " . $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$to_id;hp=$from_id;hb=$hash;f=$to_file"}, "diff");
1784                         }
1785                         print "</td>\n";
1786                 }
1787                 print "</tr>\n";
1788         }
1789         print "</table>\n";
1790         git_footer_html();
1791 }
1792
1793 sub git_blobdiff {
1794         mkdir($git_temp, 0700);
1795         git_header_html();
1796         if (defined $hash_base && (my %co = git_read_commit($hash_base))) {
1797                 print "<div class=\"page_nav\">\n" .
1798                       $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1799                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
1800                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=log"}, "log") .
1801                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base"}, "commit") .
1802                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash_base"}, "commitdiff") .
1803                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash_base"}, "tree") .
1804                       "<br/>\n";
1805                 print $cgi->a({-href => "$my_uri?p=$project;a=blobdiff_plain;h=$hash;hp=$hash_parent"}, "plain") .
1806                       "</div>\n";
1807                 print "<div>\n" .
1808                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash_base", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1809                       "</div>\n";
1810         } else {
1811                 print "<div class=\"page_nav\">\n" .
1812                       "<br/><br/></div>\n" .
1813                       "<div class=\"title\">$hash vs $hash_parent</div>\n";
1814         }
1815         if (defined $file_name) {
1816                 print "<div class=\"page_path\"><b>/$file_name</b></div>\n";
1817         }
1818         print "<div class=\"page_body\">\n" .
1819               "<div class=\"diff_info\">blob:" .
1820               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash_parent;hb=$hash_base;f=$file_name"}, $hash_parent) .
1821               " -> blob:" .
1822               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$hash;hb=$hash_base;f=$file_name"}, $hash) .
1823               "</div>\n";
1824         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash);
1825         print "</div>";
1826         git_footer_html();
1827 }
1828
1829 sub git_blobdiff_plain {
1830         mkdir($git_temp, 0700);
1831         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
1832         git_diff_print($hash_parent, $file_name || $hash_parent, $hash, $file_name || $hash, "plain");
1833 }
1834
1835 sub git_commitdiff {
1836         mkdir($git_temp, 0700);
1837         my %co = git_read_commit($hash);
1838         if (!%co) {
1839                 die_error(undef, "Unknown commit object.");
1840         }
1841         if (!defined $hash_parent) {
1842                 $hash_parent = $co{'parent'};
1843         }
1844         open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
1845         my (@difftree) = map { chomp; $_ } <$fd>;
1846         close $fd or die_error(undef, "Reading diff-tree failed.");
1847
1848         git_header_html();
1849         print "<div class=\"page_nav\">\n" .
1850               $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1851               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$hash"}, "shortlog") .
1852               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$hash"}, "log") .
1853               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") .
1854               " | commitdiff" .
1855               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash"}, "tree") . "<br/>\n";
1856         print $cgi->a({-href => "$my_uri?p=$project;a=commitdiff_plain;h=$hash;hp=$hash_parent"}, "plain") . "\n" .
1857               "</div>\n";
1858         print "<div>\n" .
1859               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
1860               "</div>\n";
1861         print "<div class=\"page_body\">\n";
1862         my $comment = $co{'comment'};
1863         my $empty = 0;
1864         my $signed = 0;
1865         my @log = @$comment;
1866         # remove first and empty lines after that
1867         shift @log;
1868         while (defined $log[0] && $log[0] eq "") {
1869                 shift @log;
1870         }
1871         foreach my $line (@log) {
1872                 if ($line =~ m/^ *(signed[ \-]off[ \-]by[ :]|acked[ \-]by[ :]|cc[ :])/i) {
1873                         next;
1874                 }
1875                 if ($line eq "") {
1876                         if ($empty) {
1877                                 next;
1878                         }
1879                         $empty = 1;
1880                 } else {
1881                         $empty = 0;
1882                 }
1883                 print format_log_line_html($line) . "<br/>\n";
1884         }
1885         print "<br/>\n";
1886         foreach my $line (@difftree) {
1887                 # ':100644 100644 03b218260e99b78c6df0ed378e59ed9205ccc96d 3b93d5e7cc7f7dd4ebed13a5cc1a4ad976fc94d8 M      ls-files.c'
1888                 # ':100644 100644 7f9281985086971d3877aca27704f2aaf9c448ce bc190ebc71bbd923f2b728e505408f5e54bd073a M      rev-tree.c'
1889                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
1890                 my $from_mode = $1;
1891                 my $to_mode = $2;
1892                 my $from_id = $3;
1893                 my $to_id = $4;
1894                 my $status = $5;
1895                 my $file = $6;
1896                 if ($status eq "A") {
1897                         print "<div class=\"diff_info\">" .  file_type($to_mode) . ":" .
1898                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, $to_id) . "(new)" .
1899                               "</div>\n";
1900                         git_diff_print(undef, "/dev/null", $to_id, "b/$file");
1901                 } elsif ($status eq "D") {
1902                         print "<div class=\"diff_info\">" . file_type($from_mode) . ":" .
1903                               $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$file"}, $from_id) . "(deleted)" .
1904                               "</div>\n";
1905                         git_diff_print($from_id, "a/$file", undef, "/dev/null");
1906                 } elsif ($status eq "M") {
1907                         if ($from_id ne $to_id) {
1908                                 print "<div class=\"diff_info\">" .
1909                                       file_type($from_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$from_id;hb=$hash;f=$file"}, $from_id) .
1910                                       " -> " .
1911                                       file_type($to_mode) . ":" . $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$to_id;hb=$hash;f=$file"}, $to_id);
1912                                 print "</div>\n";
1913                                 git_diff_print($from_id, "a/$file",  $to_id, "b/$file");
1914                         }
1915                 }
1916         }
1917         print "<br/>\n" .
1918               "</div>";
1919         git_footer_html();
1920 }
1921
1922 sub git_commitdiff_plain {
1923         mkdir($git_temp, 0700);
1924         open my $fd, "-|", "$gitbin/git-diff-tree -r $hash_parent $hash" or die_error(undef, "Open failed.");
1925         my (@difftree) = map { chomp; $_ } <$fd>;
1926         close $fd or die_error(undef, "Reading diff-tree failed.");
1927
1928         # try to figure out the next tag after this commit
1929         my $tagname;
1930         my %taghash;
1931         my $tags = git_read_refs("refs/tags");
1932         foreach my $entry (@$tags) {
1933                 my %tag = %$entry;
1934                 $taghash{$tag{'refid'}} = $tag{'name'};
1935         }
1936         open $fd, "-|", "$gitbin/git-rev-list HEAD";
1937         while (my $commit = <$fd>) {
1938                 chomp $commit;
1939                 if ($taghash{$commit}) {
1940                         $tagname = $taghash{$commit};
1941                 }
1942                 if ($commit eq $hash) {
1943                         last;
1944                 }
1945         }
1946         close $fd;
1947
1948         print $cgi->header(-type => "text/plain", -charset => 'utf-8');
1949         my %co = git_read_commit($hash);
1950         my %ad = date_str($co{'author_epoch'}, $co{'author_tz'});
1951         my $comment = $co{'comment'};
1952         print "From: $co{'author'}\n" .
1953               "Date: $ad{'rfc2822'} ($ad{'tz_local'})\n".
1954               "Subject: $co{'title'}\n";
1955         if (defined $tagname) {
1956               print "X-Git-Tag: $tagname\n";
1957         }
1958         print "X-Git-Url: $my_url?p=$project;a=commitdiff;h=$hash\n" .
1959               "\n";
1960
1961         foreach my $line (@$comment) {;
1962                 print "  $line\n";
1963         }
1964         print "---\n\n";
1965
1966         foreach my $line (@difftree) {
1967                 $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/;
1968                 my $from_id = $3;
1969                 my $to_id = $4;
1970                 my $status = $5;
1971                 my $file = $6;
1972                 if ($status eq "A") {
1973                         git_diff_print(undef, "/dev/null", $to_id, "b/$file", "plain");
1974                 } elsif ($status eq "D") {
1975                         git_diff_print($from_id, "a/$file", undef, "/dev/null", "plain");
1976                 } elsif ($status eq "M") {
1977                         git_diff_print($from_id, "a/$file",  $to_id, "b/$file", "plain");
1978                 }
1979         }
1980 }
1981
1982 sub git_history {
1983         if (!defined $hash) {
1984                 $hash = git_read_hash("$project/HEAD");
1985         }
1986         my %co = git_read_commit($hash);
1987         if (!%co) {
1988                 die_error(undef, "Unknown commit object.");
1989         }
1990         git_header_html();
1991         print "<div class=\"page_nav\">\n" .
1992               $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
1993               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
1994               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log"}, "log") .
1995               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") .
1996               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") .
1997               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash"}, "tree") .
1998               "<br/><br/>\n" .
1999               "</div>\n";
2000         print "<div>\n" .
2001               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
2002               "</div>\n";
2003         print "<div class=\"page_path\"><b>/$file_name</b><br/></div>\n";
2004
2005         open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin $file_name";
2006         my $commit;
2007         print "<table cellspacing=\"0\">\n";
2008         my $alternate = 0;
2009         while (my $line = <$fd>) {
2010                 if ($line =~ m/^([0-9a-fA-F]{40})/){
2011                         $commit = $1;
2012                         next;
2013                 }
2014                 if ($line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/ && (defined $commit)) {
2015                         my %co = git_read_commit($commit);
2016                         if (!%co) {
2017                                 next;
2018                         }
2019                         if ($alternate) {
2020                                 print "<tr class=\"dark\">\n";
2021                         } else {
2022                                 print "<tr class=\"light\">\n";
2023                         }
2024                         $alternate ^= 1;
2025                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2026                               "<td><i>" . escapeHTML(chop_str($co{'author_name'}, 15, 3)) . "</i></td>\n" .
2027                               "<td>" . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "list"}, "<b>" .
2028                               escapeHTML(chop_str($co{'title'}, 50)) . "</b>") . "</td>\n" .
2029                               "<td class=\"link\">" .
2030                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
2031                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=blob;hb=$commit;f=$file_name"}, "blob");
2032                         my $blob = git_get_hash_by_path($hash, $file_name);
2033                         my $blob_parent = git_get_hash_by_path($commit, $file_name);
2034                         if (defined $blob && defined $blob_parent && $blob ne $blob_parent) {
2035                                 print " | " .
2036                                 $cgi->a({-href => "$my_uri?p=$project;a=blobdiff;h=$blob;hp=$blob_parent;hb=$commit;f=$file_name"},
2037                                 "diff to current");
2038                         }
2039                         print "</td>\n" .
2040                               "</tr>\n";
2041                         undef $commit;
2042                 }
2043         }
2044         print "</table>\n";
2045         close $fd;
2046         git_footer_html();
2047 }
2048
2049 sub git_search {
2050         if (!defined $searchtext) {
2051                 die_error("", "Text field empty.");
2052         }
2053         if (!defined $hash) {
2054                 $hash = git_read_hash("$project/HEAD");
2055         }
2056         my %co = git_read_commit($hash);
2057         if (!%co) {
2058                 die_error(undef, "Unknown commit object.");
2059         }
2060         # pickaxe may take all resources of your box and run for several minutes
2061         # with every query - so decide by yourself how public you make this feature :)
2062         my $commit_search = 1;
2063         my $author_search = 0;
2064         my $committer_search = 0;
2065         my $pickaxe_search = 0;
2066         if ($searchtext =~ s/^author\\://i) {
2067                 $author_search = 1;
2068         } elsif ($searchtext =~ s/^committer\\://i) {
2069                 $committer_search = 1;
2070         } elsif ($searchtext =~ s/^pickaxe\\://i) {
2071                 $commit_search = 0;
2072                 $pickaxe_search = 1;
2073         }
2074         git_header_html();
2075         print "<div class=\"page_nav\">\n" .
2076               $cgi->a({-href => "$my_uri?p=$project;a=summary;h=$hash"}, "summary") .
2077               " | " . $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "shortlog") .
2078               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$hash"}, "log") .
2079               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") .
2080               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") .
2081               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$hash"}, "tree") .
2082               "<br/><br/>\n" .
2083               "</div>\n";
2084
2085         print "<div>\n" .
2086               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash", -class => "title"}, escapeHTML($co{'title'})) . "\n" .
2087               "</div>\n";
2088         print "<table cellspacing=\"0\">\n";
2089         my $alternate = 0;
2090         if ($commit_search) {
2091                 $/ = "\0";
2092                 open my $fd, "-|", "$gitbin/git-rev-list --header --parents $hash" or next;
2093                 while (my $commit_text = <$fd>) {
2094                         if (!grep m/$searchtext/i, $commit_text) {
2095                                 next;
2096                         }
2097                         if ($author_search && !grep m/\nauthor .*$searchtext/i, $commit_text) {
2098                                 next;
2099                         }
2100                         if ($committer_search && !grep m/\ncommitter .*$searchtext/i, $commit_text) {
2101                                 next;
2102                         }
2103                         my @commit_lines = split "\n", $commit_text;
2104                         my %co = git_read_commit(undef, \@commit_lines);
2105                         if (!%co) {
2106                                 next;
2107                         }
2108                         if ($alternate) {
2109                                 print "<tr class=\"dark\">\n";
2110                         } else {
2111                                 print "<tr class=\"light\">\n";
2112                         }
2113                         $alternate ^= 1;
2114                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2115                               "<td><i>" . escapeHTML(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2116                               "<td>" .
2117                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$co{'id'}", -class => "list"}, "<b>" . escapeHTML(chop_str($co{'title'}, 50)) . "</b><br/>");
2118                         my $comment = $co{'comment'};
2119                         foreach my $line (@$comment) {
2120                                 if ($line =~ m/^(.*)($searchtext)(.*)$/i) {
2121                                         my $lead = escapeHTML($1) || "";
2122                                         $lead = chop_str($lead, 30, 10);
2123                                         my $match = escapeHTML($2) || "";
2124                                         my $trail = escapeHTML($3) || "";
2125                                         $trail = chop_str($trail, 30, 10);
2126                                         my $text = "$lead<span style=\"color:#e00000\">$match</span>$trail";
2127                                         print chop_str($text, 80, 5) . "<br/>\n";
2128                                 }
2129                         }
2130                         print "</td>\n" .
2131                               "<td class=\"link\">" .
2132                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$co{'id'}"}, "commit") .
2133                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}"}, "tree");
2134                         print "</td>\n" .
2135                               "</tr>\n";
2136                 }
2137                 close $fd;
2138         }
2139
2140         if ($pickaxe_search) {
2141                 $/ = "\n";
2142                 open my $fd, "-|", "$gitbin/git-rev-list $hash | $gitbin/git-diff-tree -r --stdin -S$searchtext";
2143                 undef %co;
2144                 my @files;
2145                 while (my $line = <$fd>) {
2146                         if (%co && $line =~ m/^:([0-7]{6}) ([0-7]{6}) ([0-9a-fA-F]{40}) ([0-9a-fA-F]{40}) (.)\t(.*)$/) {
2147                                 my %set;
2148                                 $set{'file'} = $6;
2149                                 $set{'from_id'} = $3;
2150                                 $set{'to_id'} = $4;
2151                                 $set{'id'} = $set{'to_id'};
2152                                 if ($set{'id'} =~ m/0{40}/) {
2153                                         $set{'id'} = $set{'from_id'};
2154                                 }
2155                                 if ($set{'id'} =~ m/0{40}/) {
2156                                         next;
2157                                 }
2158                                 push @files, \%set;
2159                         } elsif ($line =~ m/^([0-9a-fA-F]{40})$/){
2160                                 if (%co) {
2161                                         if ($alternate) {
2162                                                 print "<tr class=\"dark\">\n";
2163                                         } else {
2164                                                 print "<tr class=\"light\">\n";
2165                                         }
2166                                         $alternate ^= 1;
2167                                         print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2168                                               "<td><i>" . escapeHTML(chop_str($co{'author_name'}, 15, 5)) . "</i></td>\n" .
2169                                               "<td>" .
2170                                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$co{'id'}", -class => "list"}, "<b>" .
2171                                               escapeHTML(chop_str($co{'title'}, 50)) . "</b><br/>");
2172                                         while (my $setref = shift @files) {
2173                                                 my %set = %$setref;
2174                                                 print $cgi->a({-href => "$my_uri?p=$project;a=blob;h=$set{'id'};hb=$co{'id'};f=$set{'file'}", class => "list"},
2175                                                       "<span style=\"color:#e00000\">" . escapeHTML($set{'file'}) . "</span>") .
2176                                                       "<br/>\n";
2177                                         }
2178                                         print "</td>\n" .
2179                                               "<td class=\"link\">" .
2180                                               $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$co{'id'}"}, "commit") .
2181                                               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$co{'tree'};hb=$co{'id'}"}, "tree");
2182                                         print "</td>\n" .
2183                                               "</tr>\n";
2184                                 }
2185                                 %co = git_read_commit($1);
2186                         }
2187                 }
2188                 close $fd;
2189         }
2190         print "</table>\n";
2191         git_footer_html();
2192 }
2193
2194 sub git_shortlog {
2195         my $head = git_read_hash("$project/HEAD");
2196         if (!defined $hash) {
2197                 $hash = $head;
2198         }
2199         if (!defined $page) {
2200                 $page = 0;
2201         }
2202         git_header_html();
2203         print "<div class=\"page_nav\">\n" .
2204               $cgi->a({-href => "$my_uri?p=$project;a=summary"}, "summary") .
2205               " | shortlog" .
2206               " | " . $cgi->a({-href => "$my_uri?p=$project;a=log;h=$hash"}, "log") .
2207               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$hash"}, "commit") .
2208               " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$hash"}, "commitdiff") .
2209               " | " . $cgi->a({-href => "$my_uri?p=$project;a=tree;h=$hash;hb=$hash"}, "tree") . "<br/>\n";
2210
2211         my $limit = sprintf("--max-count=%i", (100 * ($page+1)));
2212         open my $fd, "-|", "$gitbin/git-rev-list $limit $hash" or die_error(undef, "Open failed.");
2213         my (@revlist) = map { chomp; $_ } <$fd>;
2214         close $fd;
2215
2216         if ($hash ne $head || $page) {
2217                 print $cgi->a({-href => "$my_uri?p=$project;a=shortlog"}, "HEAD");
2218         } else {
2219                 print "HEAD";
2220         }
2221         if ($page > 0) {
2222                 print " &sdot; " .
2223                 $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$hash;pg=" . ($page-1), -accesskey => "p", -title => "Alt-p"}, "prev");
2224         } else {
2225                 print " &sdot; prev";
2226         }
2227         if ($#revlist >= (100 * ($page+1)-1)) {
2228                 print " &sdot; " .
2229                 $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$hash;pg=" . ($page+1), -accesskey => "n", -title => "Alt-n"}, "next");
2230         } else {
2231                 print " &sdot; next";
2232         }
2233         print "<br/>\n" .
2234               "</div>\n";
2235         print "<div>\n" .
2236               $cgi->a({-href => "$my_uri?p=$project;a=summary", -class => "title"}, "&nbsp;") .
2237               "</div>\n";
2238         print "<table cellspacing=\"0\">\n";
2239         my $alternate = 0;
2240         for (my $i = ($page * 100); $i <= $#revlist; $i++) {
2241                 my $commit = $revlist[$i];
2242                 my %co = git_read_commit($commit);
2243                 my %ad = date_str($co{'author_epoch'});
2244                 if ($alternate) {
2245                         print "<tr class=\"dark\">\n";
2246                 } else {
2247                         print "<tr class=\"light\">\n";
2248                 }
2249                 $alternate ^= 1;
2250                 print "<td title=\"$co{'age_string_age'}\"><i>$co{'age_string_date'}</i></td>\n" .
2251                       "<td><i>" . escapeHTML(chop_str($co{'author_name'}, 10)) . "</i></td>\n" .
2252                       "<td>";
2253                 if (length($co{'title_short'}) < length($co{'title'})) {
2254                         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "list", -title => "$co{'title'}"},
2255                               "<b>" . escapeHTML($co{'title_short'}) . "</b>");
2256                 } else {
2257                         print $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit", -class => "list"},
2258                               "<b>" . escapeHTML($co{'title_short'}) . "</b>");
2259                 }
2260                 print "</td>\n" .
2261                       "<td class=\"link\">" .
2262                       $cgi->a({-href => "$my_uri?p=$project;a=commit;h=$commit"}, "commit") .
2263                       " | " . $cgi->a({-href => "$my_uri?p=$project;a=commitdiff;h=$commit"}, "commitdiff") .
2264                       "</td>\n" .
2265                       "</tr>";
2266         }
2267         if ($#revlist >= (100 * ($page+1)-1)) {
2268                 print "<tr>\n" .
2269                       "<td>" .
2270                       $cgi->a({-href => "$my_uri?p=$project;a=shortlog;h=$hash;pg=" . ($page+1), -title => "Alt-n"}, "next") .
2271                       "</td>\n" .
2272                       "</tr>\n";
2273         }
2274         print "</table\n>";
2275         git_footer_html();
2276 }